diff options
Diffstat (limited to 'board/tqc/tqm8xx/tqm8xx.c')
| -rw-r--r-- | board/tqc/tqm8xx/tqm8xx.c | 123 |
1 files changed, 92 insertions, 31 deletions
diff --git a/board/tqc/tqm8xx/tqm8xx.c b/board/tqc/tqm8xx/tqm8xx.c index 96b6103..59bbdbc 100644 --- a/board/tqc/tqm8xx/tqm8xx.c +++ b/board/tqc/tqm8xx/tqm8xx.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2000-2006 + * (C) Copyright 2000-2008 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this @@ -21,16 +21,14 @@ * MA 02111-1307 USA */ -#if 0 -#define DEBUG -#endif - #include <common.h> #include <mpc8xx.h> #ifdef CONFIG_PS2MULT #include <ps2mult.h> #endif +extern flash_info_t flash_info[]; /* FLASH chips info */ + DECLARE_GLOBAL_DATA_PTR; static long int dram_size (long int, long int *, long int); @@ -451,24 +449,107 @@ int board_early_init_r (void) #endif /* CONFIG_PS2MULT */ -/* ---------------------------------------------------------------------------- */ -/* HMI10 specific stuff */ -/* ---------------------------------------------------------------------------- */ -#ifdef CONFIG_HMI10 +#ifdef CONFIG_MISC_INIT_R int misc_init_r (void) { -# ifdef CONFIG_IDE_LED - volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + +#ifdef CFG_OR_TIMING_FLASH_AT_50MHZ + int scy, trlx, flash_or_timing, clk_diff; + + scy = (CFG_OR_TIMING_FLASH_AT_50MHZ & OR_SCY_MSK) >> 4; + if (CFG_OR_TIMING_FLASH_AT_50MHZ & OR_TRLX) { + trlx = OR_TRLX; + scy *= 2; + } else + trlx = 0; + + /* + * We assume that each 10MHz of bus clock require 1-clk SCY + * adjustment. + */ + clk_diff = (gd->bus_clk / 1000000) - 50; + + /* + * We need proper rounding here. This is what the "+5" and "-5" + * are here for. + */ + if (clk_diff >= 0) + scy += (clk_diff + 5) / 10; + else + scy += (clk_diff - 5) / 10; + + /* + * For bus frequencies above 50MHz, we want to use relaxed timing + * (OR_TRLX). + */ + if (gd->bus_clk >= 50000000) + trlx = OR_TRLX; + else + trlx = 0; + + if (trlx) + scy /= 2; + + if (scy > 0xf) + scy = 0xf; + if (scy < 1) + scy = 1; + + flash_or_timing = (scy << 4) | trlx | + (CFG_OR_TIMING_FLASH_AT_50MHZ & ~(OR_TRLX | OR_SCY_MSK)); + + memctl->memc_or0 = flash_or_timing | (-flash_info[0].size & OR_AM_MSK); +#else + memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-flash_info[0].size & OR_AM_MSK); +#endif + memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V; + + debug ("## BR0: 0x%08x OR0: 0x%08x\n", + memctl->memc_br0, memctl->memc_or0); + if (flash_info[1].size) { +#ifdef CFG_OR_TIMING_FLASH_AT_50MHZ + memctl->memc_or1 = flash_or_timing | + (-flash_info[1].size & 0xFFFF8000); +#else + memctl->memc_or1 = CFG_OR_TIMING_FLASH | + (-flash_info[1].size & 0xFFFF8000); +#endif + memctl->memc_br1 = ((CFG_FLASH_BASE + flash_info[0].size) & BR_BA_MSK) | + BR_MS_GPCM | BR_V; + + debug ("## BR1: 0x%08x OR1: 0x%08x\n", + memctl->memc_br1, memctl->memc_or1); + } else { + memctl->memc_br1 = 0; /* invalidate bank */ + + debug ("## DISABLE BR1: 0x%08x OR1: 0x%08x\n", + memctl->memc_br1, memctl->memc_or1); + } + +# ifdef CONFIG_IDE_LED /* Configure PA15 as output port */ immap->im_ioport.iop_padir |= 0x0001; immap->im_ioport.iop_paodr |= 0x0001; immap->im_ioport.iop_papar &= ~0x0001; immap->im_ioport.iop_padat &= ~0x0001; /* turn it off */ # endif + +#ifdef CONFIG_NSCU + /* wake up ethernet module */ + immap->im_ioport.iop_pcpar &= ~0x0004; /* GPIO pin */ + immap->im_ioport.iop_pcdir |= 0x0004; /* output */ + immap->im_ioport.iop_pcso &= ~0x0004; /* for clarity */ + immap->im_ioport.iop_pcdat |= 0x0004; /* enable */ +#endif /* CONFIG_NSCU */ + return (0); } +#endif /* CONFIG_MISC_INIT_R */ + # ifdef CONFIG_IDE_LED void ide_led (uchar led, uchar status) @@ -483,26 +564,6 @@ void ide_led (uchar led, uchar status) } } # endif -#endif /* CONFIG_HMI10 */ - -/* ---------------------------------------------------------------------------- */ -/* NSCU specific stuff */ -/* ---------------------------------------------------------------------------- */ -#ifdef CONFIG_NSCU - -int misc_init_r (void) -{ - volatile immap_t *immr = (immap_t *) CFG_IMMR; - - /* wake up ethernet module */ - immr->im_ioport.iop_pcpar &= ~0x0004; /* GPIO pin */ - immr->im_ioport.iop_pcdir |= 0x0004; /* output */ - immr->im_ioport.iop_pcso &= ~0x0004; /* for clarity */ - immr->im_ioport.iop_pcdat |= 0x0004; /* enable */ - - return (0); -} -#endif /* CONFIG_NSCU */ /* ---------------------------------------------------------------------------- */ /* TK885D specific initializaion */ |